MC68HC08JB1 Datasheet, PDF (102/216 Pages) Motorola, Inc – Microcontrollers

9.5 Functional Description
Figure 9-2 shows the block diagram of the USB module. The USB
module manages communications between the host and the USB
function. The module is partitioned into three functional blocks. These
blocks consist of a dual-function transceiver, the USB control logic, and
the endpoint registers. The blocks are further detailed later in this section
(see 9.7 Hardware Description).
USB
CONTROL
LOGIC
RCV
VPIN
VMIN
VPOUT
VMOUT
D+
USB
UPSTREAM
D – ^PORT
CPU BUS
USB REGISTERS
Figure 9-2. USB Block Diagram
Technical Data
102
MC68HC08JB1 — Rev. 2.1
Freescale Semiconductor